Korean company earnings: Q4 2025

Rankings built from quarterly, half-year and annual reports filed by KOSPI and KOSDAQ companies on DART.

Companies2,522

Operating profit, YoY–2,516 comparable

Back to profit317

Swung to loss315

Results for Q4 2025 from 2,522 Korean listed companies, based on periodic reports filed on DART. 317 companies returned to an operating profit and 315 swung to a loss. Samsung Electronics posted the largest operating profit (₩20.1tn).

Largest operating profit

#	Company	Revenue	Operating profit	YoY
1	Samsung Electronics KOSPI	₩93.8tn	₩20.1tn	+209.2%
2	SK hynix KOSPI	₩32.8tn	₩19.2tn	+137.2%
3	SK Square KOSPI	₩194bn	₩3.10tn	+87.6%
4	HD Hyundai KOSPI	₩18.7tn	₩1.97tn	+124.6%
5	Korea Electric Power KOSPI	₩23.7tn	₩1.95tn	-19.4%
6	Kia KOSPI	₩28.1tn	₩1.84tn	-32.2%
7	KB Financial Group KOSPI	–	₩1.76tn	+70.6%
8	Hyundai Motor KOSPI	₩46.8tn	₩1.70tn	-39.9%
9	Kookmin Bank	–	₩1.20tn	+26.9%
10	Shinhan Financial Group KOSPI	–	₩1.11tn	+66.2%
11	HD Korea Shipbuilding & Offshore Engineering KOSPI	₩8.15tn	₩1.04tn	+108.0%
12	KEB Hana Bank	–	₩993bn	+25.4%
13	Hyundai Mobis KOSPI	₩15.4tn	₩930bn	-5.6%
14	Hana Financial Group KOSPI	–	₩890bn	+48.0%
15	Mirae Asset Securities KOSPI	₩8.86tn	₩846bn	+209.1%
16	Samsung C&t KOSPI	₩10.8tn	₩822bn	+29.6%
17	Hanwha Aerospace KOSPI	₩8.42tn	₩808bn	-10.2%
18	GS Holdings KOSPI	₩6.49tn	₩776bn	+25.6%
19	Industrial Bank OF Korea KOSPI	–	₩727bn	+19.1%
20	CJ KOSPI	₩11.9tn	₩712bn	+13.0%
21	Woori Financial Group KOSPI	–	₩709bn	+5.2%
22	Woori Bank	–	₩651bn	-12.5%
23	NAVER KOSPI	₩3.20tn	₩611bn	+12.7%
24	HD Hyundai Heavy Industries KOSPI	₩5.19tn	₩575bn	+103.8%
25	Hankook Tire & Technology KOSPI	₩5.46tn	₩547bn	+15.5%
26	DB Insurance KOSPI	–	₩524bn	+109.8%
27	Hyundai Glovis KOSPI	₩7.47tn	₩508bn	+10.6%
28	Celltrion KOSPI	₩1.33tn	₩475bn	+141.9%
29	KoreaGas KOSPI	₩8.99tn	₩474bn	-59.7%
30	Korea Z KOSPI	₩4.77tn	₩429bn	+256.4%

Fastest operating profit growth vs. same quarter last year

#	Company	Revenue	Operating profit	YoY
1	E1 KOSPI	₩2.94tn	₩27.3bn	+2459.7%
2	HJ Shipbuilding & Construction KOSPI	₩630bn	₩50.5bn	+2437.0%
3	Seojin System KOSDAQ	₩311bn	₩23.5bn	+2241.0%
4	Lotte Tour Development KOSPI	₩187bn	₩44.2bn	+1942.5%
5	Sunic System KOSDAQ	₩221bn	₩53.6bn	+1581.4%
6	Dongaeltek KOSDAQ	₩239bn	₩54.9bn	+1418.2%
7	Woowon Development KOSDAQ	₩93.0bn	₩27.4bn	+1020.1%
8	TS KOSPI	₩329bn	₩15.0bn	+918.6%
9	Korea Computer KOSDAQ	₩119bn	₩10.3bn	+892.3%
10	Sebo Manufacturing Engineering KOSDAQ	₩199bn	₩12.8bn	+887.8%
11	Taeyang Metal Industrial KOSPI	₩155bn	₩11.1bn	+865.1%
12	Com2us KOSDAQ	₩182bn	₩19.2bn	+789.1%
13	Thn KOSPI	₩289bn	₩24.3bn	+743.1%
14	YC KOSDAQ	₩86.7bn	₩9.2bn	+737.3%
15	A-jin Industry KOSDAQ	₩272bn	₩16.7bn	+694.3%
16	Hanwha General Insurance KOSPI	–	₩86.9bn	+678.1%
17	Protec KOSDAQ	₩84.6bn	₩18.0bn	+635.9%
18	Inveni KOSPI	₩398bn	₩21.3bn	+540.2%
19	Solum KOSPI	₩428bn	₩8.1bn	+539.9%
20	Geumhwa Psc KOSDAQ	₩132bn	₩15.5bn	+526.6%
21	Intelligent Digital Integrated Security KOSDAQ	₩89.0bn	₩6.5bn	+516.5%
22	Tfe KOSDAQ	₩37.4bn	₩7.3bn	+511.7%
23	Mirai Semiconductors KOSDAQ	₩176bn	₩7.1bn	+471.0%
24	Itcenglobal KOSDAQ	₩4.24tn	₩160bn	+470.4%
25	Development Advance Solution KOSPI	₩95.7bn	₩6.8bn	+461.5%
26	KB Securities	₩5.20tn	₩244bn	+437.7%
27	Nongshim Holdings KOSPI	₩227bn	₩14.6bn	+435.1%
28	SGA Solutions KOSDAQ	₩23.3bn	₩8.7bn	+435.1%
29	SNTEnergy KOSPI	₩202bn	₩46.8bn	+417.3%
30	SK oceanplant KOSPI	₩174bn	₩13.7bn	+410.9%

Fastest revenue growth vs. same quarter last year

#	Company	Revenue	Revenue YoY	Operating profit
1	Fino KOSDAQ	₩87.0bn	+557.3%	₩6.9bn
2	Sunic System KOSDAQ	₩221bn	+450.6%	₩53.6bn
3	Dongaeltek KOSDAQ	₩239bn	+353.9%	₩54.9bn
4	NextEye KOSDAQ	₩53.8bn	+334.5%	−₩17.6bn
5	iCRAFT KOSDAQ	₩109bn	+264.3%	₩11.4bn
6	MX On KOSDAQ	₩36.6bn	+261.2%	−₩8.2bn
7	Exicon KOSDAQ	₩45.1bn	+251.3%	₩10.7bn
8	Aimed Bio KOSDAQ	₩38.0bn	+233.0%	₩25.5bn
9	Metalabs KOSPI	₩31.1bn	+206.5%	−₩1.1bn
10	ADTechnology KOSDAQ	₩61.0bn	+186.1%	₩2.8bn
11	Itcenglobal KOSDAQ	₩4.24tn	+181.5%	₩160bn
12	Mdevice KOSDAQ	₩33.0bn	+168.3%	₩3.9bn
13	Dae Myoung Energy KOSDAQ	₩52.8bn	+156.3%	₩7.9bn
14	Jeju Semiconductor KOSDAQ	₩91.8bn	+149.1%	₩13.9bn
15	Sungho Electronics KOSDAQ	₩60.2bn	+146.3%	₩4.1bn
16	Duk San Neolux KOSDAQ	₩127bn	+143.6%	₩23.1bn
17	Me2on KOSDAQ	₩52.9bn	+138.3%	₩3.0bn
18	Hancom WITH KOSDAQ	₩274bn	+134.5%	₩2.0bn
19	Wits KOSDAQ	₩44.6bn	+128.2%	−₩2.0bn
20	Apr KOSPI	₩548bn	+124.2%	₩130bn
21	M eighty-three KOSDAQ	₩56.9bn	+123.6%	−₩2.0bn
22	LS Securities KOSDAQ	₩957bn	+118.6%	−₩20.3bn
23	Elentec KOSDAQ	₩252bn	+118.1%	₩20.9bn
24	TY Holdings KOSPI	₩23.6bn	+117.3%	−₩31.2bn
25	Hankook Tire & Technology KOSPI	₩5.46tn	+115.5%	₩547bn
26	Haesung Optics KOSDAQ	₩54.9bn	+113.0%	₩676m
27	SNTEnergy KOSPI	₩202bn	+110.9%	₩46.8bn
28	Dreamus Company KOSDAQ	₩61.0bn	+110.1%	−₩66m
29	Kakao Games KOSDAQ	₩98.9bn	+103.7%	−₩13.1bn
30	TXR Robotics KOSDAQ	₩32.3bn	+103.1%	₩1.8bn

Returned to operating profit

#	Company	Revenue	Operating profit	YoY
1	SK KOSPI	₩30.3tn	₩392bn	Back to profit
2	KT KOSPI	₩6.84tn	₩227bn	Back to profit
3	Hyundai Engineering & Construction KOSPI	₩8.06tn	₩119bn	Back to profit
4	Youngone KOSPI	₩1.01tn	₩105bn	Back to profit
5	Hanon Systems KOSPI	₩2.70tn	₩89.7bn	Back to profit
6	EOFlow KOSDAQ	₩171m	₩89.2bn	Back to profit
7	L&f KOSPI	₩618bn	₩82.5bn	Back to profit
8	Daishin Securities KOSPI	₩1.79tn	₩53.2bn	Back to profit
9	Ecopro KOSDAQ	₩715bn	₩46.8bn	Back to profit
10	Hyundai Steel Company KOSPI	₩5.49tn	₩43.3bn	Back to profit
11	Ecopro BM KOSDAQ	₩497bn	₩41.6bn	Back to profit
12	Seah Holdings KOSPI	₩1.72tn	₩41.0bn	Back to profit
13	Korea Circuit KOSPI	₩448bn	₩36.1bn	Back to profit
14	Hanwha Vision KOSPI	₩459bn	₩30.5bn	Back to profit
15	Daeduck Electronics KOSPI	₩318bn	₩28.9bn	Back to profit
16	BH KOSPI	₩508bn	₩28.8bn	Back to profit
17	Daeduck KOSPI	₩393bn	₩27.7bn	Back to profit
18	OCI Holdings Company KOSPI	₩811bn	₩27.3bn	Back to profit
19	Yuhan KOSPI	₩546bn	₩26.1bn	Back to profit
20	Shinhan Securities	–	₩25.9bn	Back to profit
21	Dongbu KOSPI	₩524bn	₩25.3bn	Back to profit
22	Hanwha Investment&securities KOSPI	₩899bn	₩25.2bn	Back to profit
23	Korea Petro Chemical Ind KOSPI	₩849bn	₩24.3bn	Back to profit
24	Sangsangin KOSDAQ	−₩104bn	₩22.5bn	Back to profit
25	Mirae Asset Venture Investment KOSDAQ	₩114bn	₩22.2bn	Back to profit
26	Taekwang Industrial KOSPI	₩410bn	₩22.1bn	Back to profit
27	kakaopay KOSPI	₩270bn	₩20.8bn	Back to profit
28	iM Financial Group KOSPI	–	₩19.9bn	Back to profit
29	Intellian Technologies KOSDAQ	₩124bn	₩19.9bn	Back to profit
30	WONIK QnC KOSDAQ	₩249bn	₩18.4bn	Back to profit

Swung to operating loss

#	Company	Revenue	Operating profit	YoY
1	Daewoo Engineering & Construction KOSPI	₩1.71tn	−₩1.11tn	-1011.9%
2	Hanwha Solutions KOSPI	₩3.76tn	−₩490bn	-575.9%
3	Asiana Airlines KOSPI	₩1.62tn	−₩196bn	-1156.4%
4	LG Electronics KOSPI	₩23.9tn	−₩109bn	-180.5%
5	LG H&h KOSPI	₩1.47tn	−₩72.7bn	-267.5%
6	Nvh Korea KOSDAQ	₩398bn	−₩72.5bn	-1929.4%
7	K-ensol KOSDAQ	₩102bn	−₩67.5bn	-2878.7%
8	Woori Technology Investment KOSDAQ	−₩33.1bn	−₩39.4bn	-152.4%
9	Standard Chartered Bank Korea	–	−₩38.9bn	-151.9%
10	Hansol Technics KOSPI	₩289bn	−₩29.3bn	-2831.9%
11	LX Hausys KOSPI	₩765bn	−₩28.9bn	-688.8%
12	TuksuConstruction KOSDAQ	₩14.3bn	−₩28.3bn	-618.3%
13	IS Dongseo KOSPI	₩329bn	−₩27.0bn	-393.0%
14	Chinhung International KOSPI	₩187bn	−₩26.7bn	-467.1%
15	Dongkuk Coated Metal KOSPI	₩664bn	−₩25.4bn	-984.5%
16	Yoosung Enterprise KOSPI	₩69.2bn	−₩24.4bn	-2530.5%
17	Zinus KOSPI	₩192bn	−₩23.5bn	-247.2%
18	KCC Glass KOSPI	₩458bn	−₩19.9bn	-392.5%
19	Smec KOSDAQ	₩40.2bn	−₩19.7bn	-740.6%
20	Soulbrain Holdings KOSDAQ	₩140bn	−₩18.4bn	-345.6%
21	Daejin Advanced Materials KOSDAQ	₩19.5bn	−₩18.2bn	-1114.4%
22	NextEye KOSDAQ	₩53.8bn	−₩17.6bn	-1034.9%
23	Yunsung F&c KOSDAQ	₩25.1bn	−₩14.6bn	-207.2%
24	Philoptics KOSDAQ	₩26.4bn	−₩13.7bn	-212.8%
25	Kakao Games KOSDAQ	₩98.9bn	−₩13.1bn	-304.6%
26	Jin Air KOSPI	₩353bn	−₩12.6bn	-153.6%
27	Jusung Engineering KOSDAQ	₩52.3bn	−₩12.6bn	-751.4%
28	Devsisters KOSDAQ	₩59.6bn	−₩12.4bn	Swung to loss
29	Lotte Chilsung Beverage KOSPI	₩894bn	−₩12.0bn	-230.8%
30	Shinsegae International KOSPI	₩187bn	−₩11.8bn	Swung to loss

Key accounts from DART periodic reports (consolidated where available). Q4 is derived as full-year minus nine-month figures. Growth rankings only include companies with year-earlier revenue of at least ₩10bn or operating profit of at least ₩1bn. Reports with suspected unit errors are excluded. Not investment advice.